Hey guys, I had been having this issue for nearly 12 months. I tried all the usual things to do with supafetch, windows search, etc and none of these were the cause. Today I think I came across the solution as after this it went to 0% straight away. Open Task Scheduler and go to the following: - Microsoft - Windows - Application Experience. I stopped Microsoft Compatibility Appraiser which fixed my issue. I then disabled this and after reboot the issue was gone. Hopefully if anyone else has these issues this may be the solution!